﻿/*
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Daidalos.UI
{
    /// <summary>
    /// 
    /// </summary>
    public class ControlSorter : IComparer<Control>
    {
        /// <summary>
        /// 
        /// </summary>
        /// <param name="x"></param>
        /// <param name="y"></param>
        /// <returns></returns>
        public int Compare(Control x, Control y)
        {
            if (x.ZDepth < y.ZDepth)
            {
                return 1;
            }
            if(x.ZDepth == y.ZDepth)
            {
                if ((x is Panel) && !(y is Panel))
                {
                    return -1;
                }
                else if ((y is Panel) && !(x is Panel))
                {
                    return 1;
                }
    
                if (x.Position.Y < y.Position.Y)
                {
                    return 1;
                }
                if (x.Position.Y > y.Position.Y)
                {
                    return -1;
                }
                return 0;
            }
            return -1;
        }
    }
}
